Just to add some context here, I live about 90 minutes from Thorpe Park in the UK and they installed a Mack in 2024 (Hyperia) which is the tallest in the country.
It was plagued with issues early on, the opening few months were really bugged by downtime, its valleyed, I think, twice, possibly three times. It has now been fairly reliable from about May of last year but having seen what happened with Hyperia early on this doesn’t massively surprise me.
I’m going 23 April for my first time, hoping all is good by then.